\begin{tabular}{l*{4}{c}}
\toprule
            &\multicolumn{1}{c}{\shortstack{Cand wins,\\t}}&\multicolumn{1}{c}{\shortstack{Cand wins,\\t+1}}&\multicolumn{1}{c}{\shortstack{Cand. runs,\\t+1}}&\multicolumn{1}{c}{\shortstack{Cand qualif.,\\t+1}}\\\cmidrule(lr){2-2}\cmidrule(lr){3-3}\cmidrule(lr){4-4}\cmidrule(lr){5-5}
            &\multicolumn{1}{c}{(1)}&\multicolumn{1}{c}{(2)}&\multicolumn{1}{c}{(3)}&\multicolumn{1}{c}{(4)}\\
\midrule
RD\_Estimate &       0.035&       0.251&       0.329&       0.255\\
            &     (0.006)&     (0.023)&     (0.024)&     (0.025)\\
\midrule
Robust p-value&       0.000&       0.000&       0.000&       0.000\\
Observations&        7706&        7372&        7372&        7372\\
Polynomial order&           1&           1&           1&           1\\
Bandwidth   &       0.025&       0.050&       0.050&       0.050\\
Mean, left of threshold&       0.000&       0.148&       0.390&       0.318\\
Treatment   &      Runoff&     Winning&     Winning&     Winning\\
Pred. treatment effect&            &       0.009&       0.011&       0.009\\
\bottomrule
\end{tabular}
